Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed, In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed. For this corruptible must put on incorruption, and this mortal must put on immortality.
Howard W. HunterThere is a separation of the spirit and the body at the time of death. The resurrection will again unite the spirit with the body, and the body becomes a spiritual body, one of flesh and bones but quickened by the spirit instead of blood. Thus, our bodies after the resurrection, quickened by the spirit, shall become immortal and never die.
Brigham YoungWill the Saints arise from the dead? Yes. Who will know it? But a few. When the resurrection commences, I say but few will know it . . . Will the Saints rise from the dead before the world is converted? Yes. You may despair of ever seeing all creation converted to the Lord Jesus, or to the faith of the holy Gospel. Will you see the resurrection? Yes: you will be in it, and enjoy it; you will be in the first resurrection.
In that day an infant’s life shall be as the age of a tree; and when they die they shall not sleep, but shall be changed in the twinkling of an eye.